*{
    padding:0;
    margin:0;
    font-size:12px;
}
body {
    background-color: #F5F5F5;
}
.top {
    width: 100%;
    height: 27px;
    background: url("../images/top_bg.jpg") repeat-x/*水平重复*/;
}
.top_content {
    width: 1000px;
    margin: 0 auto;/*上下间距为0，左右间距是自动*/
}/*通过给一个div设置宽度1000,并且把左右间距设置为自动，就可以使一个div在页面当中居中*/
.top_content li {
    list-style-image: url("../images/li_bg.gif");
    float: right;
    width: 70px;
    line-height: 27px;/*当我们想让一行文字在盒子当中垂直居中的话，我们可以把行高设置为盒子的高度相同，这样就可以实现盒子当中的文字垂直方向上居中*/
}
.top_content a:link/*意思是控制.top_content类下面的超链接的初始状态*/,.top_content a:visited/*意思是控制.top_content类下面的超链接的访问之后的状态*/ {
    color: #8E8E8E;
    text-decoration: none;
}
.top_content a:hover/*意思是控制.top_content类下面的超链接的鼠标经过的状态*/,.top_content a:active/*意思是控制.top_content类下面的超链接的按下鼠标之后的状态*/ {
    color: #900;
    text-decoration: none
;
}
.wrap {
    width: 1000px;
    margin: 0 auto;
}
.logo {
    height: 80px;
    background-color: #ffffff;
}
.logo_left {
    width: 200px;
    float: left;
    font-size: 0px;
}
.logo_right {
    width: 300px;
    float: right;
    height: 28px;
    margin-top: 30px;
    color: #8E8E8E;
}
.logo_right img {
    vertical-align: middle;/*垂直对接方式*/
    margin-right: 10px;
}
.tel {
    font-family:"微软雅黑";
    font-size: 16px;
    color: #ff5412;
}
.nav {
    height: 40px;
}
.nav_left {
    width: 10px;
    background: url("../images/nav_left.jpg") no-repeat;
}
.nav_mid {
    width: 980px;
    background: url("../images/nav_bg.jpg") repeat-x;
}
.nav_right {
    width: 10px;
    background: url("../images/nav_right.jpg") no-repeat;

}
.nav_left,.nav_mid,.nav_right {
    float: left;
    height: 40px;
}
.nav_mid_left,.nav_mid_right {
    float: left;
}
.nav_mid_left {
    width: 680px;
}
.nav_mid_right {
    width: 300px;
}
.nav_mid_left li {
    float: left;
    list-style-type: none;
    width: 100px;
    text-align: center;
    line-height: 40px;
    /*在这里把行高设置为40PX，是因为盒子的高度为40px，当需要把某一个盒子当中的文字设置为垂直方向上居中的时候，我们就可以通过把他的行高设置为以这个DIV的高度正好相同，就可以实现上盒子上的内容在垂直方向上居中*/
}
.nav_mid_left a:link,.nav_mid_left a:visited {
    text-decoration: none;
    color: #ffffff;
    font-size: 16px;
    font-family: "微软雅黑";
}
.nav_mid_left a:hover,.nav_mid_left a:active {
    text-decoration: none;
    color: yellow;
    font-size: 16px;
    font-family: "微软雅黑";
}
.search_text {
    width: 190px;
    height: 25px;
    margin-top: 5px;
    background: url("../images/search.jpg") no-repeat right center;
    /*background-image: url("../images/search.jpg");*/
    /*background-repeat: no-repeat;*/
    /*background-position: right center;*/
    background-color: white;
    padding-right: 25px;
    border: 1px solid white;
}

.ad{
    height:310px;
    overflow: hidden;
    /*意思是帮你溢出这个div之后就隐藏掉多余的*/
}
.main {
    height: 250px;
    background-color: #ffffff;
    margin-top: 5px;
}
.news {
    width: 340px;
    border: 1px solid #8E8E8E;
    background-color: yellow;
}
.course {
    width: 410px;
    border: 1px solid #8E8E8E;
    background-color: red;
    margin: 0 7px;
}
.sidebar {
    width:230px;
    background-color: #008CBA;
}
.news,.course,.sidebar {
    height: 250px;
    float: left;
}
.title {
    height: 35px;
    border-bottom: 2px solid #E8E8E8;
}
.title_left {
    width: 70%;
    font-family: "微软雅黑";
    font-size: 14px;
    font-weight: bold;
    color: #786F66;
    float: left;
    line-height: 35px;
    padding-left: 20px;
}
.title_right {
    width: 20px;
    float: left;
    line-height: 35px;
    text-align: right;
    padding-right: 10px;
}
.title_right a {
    text-decoration: none;
    color: #999999;
}
.pic_news {
    height: 80px;
    margin-top: 10px;
    line-height: 22px;

}
.pic_news img,.course_pic img {
    float: left;
    margin: 0 5px;
}
.pic_news a,.course_pic a{
    color: #CC0000;
    text-decoration: none;
}
.news_list {
    margin-top: 20px;
}
.news_list li {
    /*list-style-image: url("../images/list.jpg");*/
    list-style-type: none;
    background:url("../images/list.jpg") no-repeat;
    padding-left:10px;
    margin:8px 8px;
    border-bottom: 1px dotted #cccccc;
}
.news_list a:link,.news_list a:visited {
    text-decoration: none;
    color: #000000;
}
.news_list a:hover,.news_list a:active {
    text-decoration: none;
    color: red;
}
.news_list span {
    color: #999999;
    float: right;
}
.course_pic {
    height: 120px;
    margin-top:10px;
    line-height: 22px;
}
.course_type {
    height: 37px;
    width: 372px;
    background: url("../images/product_type_bg.jpg") no-repeat;
    margin: 20px auto;
}
.course_type li {
    list-style-type: none;
    float: left;
    line-height: 37px;
    margin: 0 15px;
    text-align: center;
}
.video {
    height: 185px;
    border: 1px solid #8E8E8E;
}
.video_content {
    height: 150px;
}
.sidebar_ad {
    height: 55px;
    border: 1px solid #8E8E8E;
    margin-top: 10px;
}
.copyright {
    width: 100%;
    height: 200px;
    background-color: #E8E8E8;
    margin-top: 10px;
    clear: both;
}
.copyright_content {
    width: 1000px;
    margin: 0 auto;
    padding-top:20px;
}
.copyright_content li {
    list-style-type: none;
    float: left;
    width: 200px;
    background: url("../images/line.png") no-repeat right center;
    text-align: center;
    line-height: 30px;
    font-family: "微软雅黑";
}
.copyright_content a{
    text-decoration: none;
    color: #999999;
    font-size: 18px;
}
.copyright_content li ul li a {
    font-size: 14px;
}
.list_main {
    min-height: 350px;
    _height:350px;
    background-color: #ffffff;
    margin-top: 10px;
}
.news_type {
    width: 220px;
    height: 350px;
    border: 1px solid #E8E8E8;
    /*background-color: yellow;*/
    float: left;
}
.list_box {
    width: 770px;
    min-height: 350px;/*min-height属性为自适用高度，IE6不能识别min-height属性，自适应高度可以用_height:属性来设置*/
    _height:350px;
    /*background-color: #F9F;*/
    border: 1px solid #E8E8E8;
    float: right;
    background: #ffffff;
}
.news_type h2 {
    height:35px;
    line-height: 35px;
    font-size: 14px;
    font-family: "微软雅黑";
    color: #666666;
    background: url("../images/titile_bg.gif") repeat-x;
   padding-left: 20px;
}
.news_type_content {
    height: 365px;
    background: url("../images/content_bg.gif") repeat-x;
}
.news_type_content li {
    list-style-type: none;
    height: 30px;
    line-height: 30px;/*垂直方向上居中*/
    text-decoration: none;
}
.news_type_content a {
    text-decoration: none;
    color: #666666;
    background: url("../images/li_bg.gif") no-repeat left center;/*水平靠左，垂直居中*/
    padding-left: 15px;
    display: block;/*加上 display: block属性是把li内联属性变为块级*/
}
.news_type_content a:hover {
    color: #009cdf;
    background: url("../images/li_bg2.gif") no-repeat left center;
    background-color: #F2F2F2;
}
.list_box h2 {
    height: 35px;
    line-height: 35px;
    font-size: 14px;
    color: #666;
    font-family: "微软雅黑";
    background: url("../images/type_bg.png") repeat-x;
    padding-left: 20px;
}
.page {
    height: 40px;
    margin-top: 10px;
    text-align: center;
}
.page a {
    display: inline-block;/*inline-block属性为即有内联元素，又有块元素，inline为内联元素 block为块元素*/
    text-decoration: none;
    border: 1px solid #E8E8E8;
    /* color: black; */
    margin: 5px;
    padding: 5px 10px;
}
.page a:link,.a:visited {
    color: black;
}
.page a:hover, a:active {
    color: #ffffff;
    background-color: #cc1b1b;
}
.list_box h1 {
    text-align: center;
    font-size: 20px;
    font-family: “微软雅黑”;
    margin: 10px 0;
}
.list_box_newsInfo {
    color: #8E8E8E;
    text-align: center;
    border-bottom: 1px dotted #E8E8E8;
}
.list_box_newsContent {
    font-size: 14px;
    padding: 20px;
    line-height: 25px;
    text-indent: 2em;
}